Commons:Pearson Scott Foresman
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Pearson Scott Foresman is an educational publisher that sent 16 boxes of illustrations to the Wikimedia Foundation office in Spring of 2007, donating them into the public domain in the process, for use on Wikimedia Commons.
Contents
The Project[edit]
By November of 2007, only a fraction of the images had been scanned and even fewer uploaded (see Category:PD-ScottForesman and Category:Pearson Scott Foresman publisher). This is primarily due to the limited availability of volunteers in the Wikimedia offices. Going forward, in order to ease the process (and to avoid having to ship 16 boxes to San Francisco), we are uploading only the raw scans of images, in order to open up the project to volunteers worldwide.
How to participate[edit]
The raw scan[edit]
To the left is a sample scan. Unprocessed scans may be found in Category:ScottForesman-raw. Each item should be extracted from this image.
Image editing[edit]
Typical work, using your favorite graphics editing program would be as follows:
Cropping: Selecting around the object and cropping the image
Rotating: This image had to be rotated 180 degrees
Grayscaling: As the image is line art, grayscaling it reduces the size of the image and removes discoloration due to age
Whitepoint: Changing the whitepoint removes the darkness from the background. This can also be done with varying success with "Contrast" or "Levels"
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Whitepointing in GIMP[edit]
A simple guide to apply a sort of whitepointing in GIMP
The cropped, grayscaled, possibly rotated source image
Adjust the color levels, place the white mark at the right of the visible spectrum, place the black mark at the left of the minor spectra on the other side. The image corresponds to a case of a picture with an spectrum with two distinct areas, which requires more trial and error to get the desired results.
Erase any residue in the white area (remember to remove alpha channel)
Apply a Gaussian Blur - 5/5 is a good value
Readjust the color levels again, 15% on each side might do the trick
Apply an unsharp mask, use a radius of 30 and an amount of 1.
The final result!
Uploading[edit]
This image is then saved as a grayscale PNG (which is a preferred format for black and white line art) file and uploaded as Image:Toad (PSF).png. The "PSF" (Pearson Scott Foresman) is tagged on to the image name to avoid conflict with other images that may have been uploaded to Commons.
Uploads should use the template {{ScottForesman}} for permissions and source. If you do not choose to categorize the image yourself, please add the {{uncategorized}} template, in order that others who are following image cleanup do it.
The above images were extracted as follows:
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Completing[edit]
Finally, update the image description page of the original scan. Most, if not all, of the original scans will be tagged with the {{ScottForesman-raw}} template (if not, they should be). Place the images in a <gallery> using the images parameter; see this diff link for an example. Doing this will categorize the raw image under Category:ScottForesman-raw-processed.
Image usage[edit]
Don't forget to look for places where to use these images! You can see some examples of where they are being used in Commons:Pearson Scott Foresman/Usage.
